[megerian]

Yes - that is exactly what happened, and here is how I fixed it. On my 88 cab (same year, same car as this one) for some reason, one time the cab top sort of dropped harder than usual onto the windshield. Maybe it was the slope of where I was parked, and while I normally like to support the top as its closing, this one time I didn't. At this point it was dead. Switch did nothing. Since I know exactly how this works, as I have taken the whole thing apart several times, I removed the right rear speaker and saw that the main arm had travelled just a bit farther than normal and closed the white limit switch. Without moving the top at all , I just loosened up the white switch, which is connected by 2 small phillips screws, just enough to move it away from the arm and open the switch. Presto, top works perfectly again.

I adjusted the little metal piece that triggers the switch, reattached everything ( and of course I never close the top anymore without supporting it for its last few seconds and lower it gently ) and everything works.